package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;


@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;


    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpServletRequest request) {
        //获取手机号
        String phone = user.getPhone();

        if (StringUtils.isNotEmpty(phone)) {
            //生成随机四位的验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}", code);

            //调用阿里云提供的短信服务
            //SMSUtils.sendMessage("瑞吉点餐","",phone,code);  手机发送验证码方式

            //需要将生成的验证码存到Session
            //request.getSession().setAttribute(phone,code);

            redisTemplate.opsForValue().set(phone,code,3, TimeUnit.MINUTES);


            return R.success("手机验证码发送成功");

        }


        return R.error("短信发送失败");
    }


    //手机端登录
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map , HttpSession session) {
        log.info(map.toString());

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //从session中获取保存的验证码
        //Object codeSession = session.getAttribute(phone);

        //从redis中获取验证码
        Object redis = redisTemplate.opsForValue().get(phone);

        //进行验证码校验
        if (redis != null && redis.equals(code)) {
            //校验成功，正常登录

            //判断当前手机号是否为新用户，如果时新用户就自动完成注册
            LambdaQueryWrapper<User> userLambdaQueryWrapper = new LambdaQueryWrapper<>();
            userLambdaQueryWrapper.eq(User::getPhone, phone);

            User user = userService.getOne(userLambdaQueryWrapper);
            if (user == null) {
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }

            session.setAttribute("user",user.getId());

            //从Redis中删除缓存的验证码
            redisTemplate.delete(phone);
            return R.success(user);

        }


        return R.error("登录失败");
    }
}
